1. School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, Australia
2. Department of Health and Human Sciences, Southeastern Louisiana University, Hammond, USA
3. Nursing, Midwifery and Allied Health Professionals Research Unit, Glasgow Caledonian University, Glasgow, UK
4. Communication Sciences and Disorders, University of Central Florida, Orlando, USA
5. Department of Speech and Hearing Science, Indiana University, Bloomington, USA
6. Communication Sciences and Disorders, Ohio University, Athens, USA